--- product_id: 430293229 title: "K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine" brand: "cnctopbaos" price: "R$7828" currency: BRL in_stock: true category: "Cnctopbaos" url: https://www.desertcart.com.br/products/430293229-k12-100mm-cnc-router-milling-machine-rotational-axis-4th-axis store_origin: BR region: Brazil --- # Waterproof NEMA23 stepper motors No-backlash precision gearbox 50:1 harmonic drive ratio K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine **Brand:** cnctopbaos **Price:** R$7828 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your CNC game with precision and power that won’t quit! ## Quick Answers - **What is this?** K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine by cnctopbaos - **How much does it cost?** R$7828 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/430293229-k12-100mm-cnc-router-milling-machine-rotational-axis-4th-axis) ## Best For - cnctopbaos enthusiasts ## Why This Product - Trusted cnctopbaos brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Powerhouse:** With a sleek 170x90x115mm footprint and just 2.6kg weight, it fits seamlessly into your CNC setup without bulk. - • **Precision Perfected:** Experience ultra-smooth, backlash-free rotation with a 50:1 harmonic reducer gearbox that guarantees machining accuracy. - • **Plug & Play Versatility:** Compatible with 4th and 5th axis CNC routers, milling machines, and engraving centers—upgrade your workflow effortlessly. - • **Engineered for Endurance:** Crafted from high-quality aluminum alloy with anti-rust coating, this rotary table is built to last through countless projects. - • **Built to Brave the Elements:** Dual waterproof NEMA23 stepper motors ensure reliable, quiet operation even in demanding industrial environments. ## Overview The CNCTOPBAOS 5th Axis Rotary Table features a robust 50:1 harmonic gapless gearbox for zero backlash and high rigidity, paired with dual waterproof NEMA23 stepper motors for quiet, stable operation. Its compact aluminum alloy design (170x90x115mm, 2.6kg) is engineered for durability and precision, making it ideal for advanced 4th and 5th axis CNC machining, engraving, and milling applications. ## Description Package include:1set 4th axis K12 100mm ( Includes stepper motor and 4 jaw chuck) Ratio 6:11 x 65mm MT2 Tailstock Descriptions:Chuck type: K12 100mm 4 jaw centering chuckCenter height: 65mmTotal height: 115mmAngle: 0.3°/ step Gear box output shaft diameter: 25mmReducing ratio: 6:1(belt deceleration mode)Stepper motor: Nema23 57mm 3A 2-phase 4 wireAccessories: Set of Anti-claw and wrenchesThe fourth axis parameter settings:Mach3 system settings: the pulses required for 1°(Motor 1 lap pulses x Driver fine fraction x Reduction ratio) ÷ 360°For example: 57mm 2- phase stepper motor, fine fraction of 16, reduction ratio 6:1(200 x 16 x 6 ) / 360=53.33333)Weihong system settings: 1 pulse along the angle 360°/(Motor 1 lap pulses x Driver fine fraction x Reduction ratio)For example: 57mm 2- phase stepper motor, fine fraction of 16, reduction ratio 6:1360 / (200 x 16 x 6) =0.001875Tailstock type MT2Center Height: 65mmStretch distance: 50mmTop tip: Activity typeAxial locking wrench for tailstockNema23 stepper motor 76mm Shaft Diameter: 8 mmStep Angle:1.8Current: 3ATemperature Rise: 80 c maxInsulation Resistance: 100MOhm(500V DC)Holding Torque: 18kg.cm ## Features - Specifications of 4th Axis: Center height: 65 mm/2.56 inch; Total height:; 115 mm/4.5 inch; Angle: 0.3°/step ; Reduction ratio: 6:1; Base Material: Aluminum alloy; Size: 210x168x115 mm/8.3x6.6x4.5 inch; Weight: 7.9 KG/17.4 LB; Inner through hole diameter/shaft hollow diameter is 22 mm/0.86 inch; Output shaft diameter:30 mm/1.18 inch - Nema23 Stepper Motor: Phase: 2 Phase; Type: Hybrid; Step Angle: 1.8°; Current: 3.0A; Holding torque: 270oz-in/1.8Nm; Shat diameter: 8mm; 4 Lead Wires: A+ to Red ; A- to Green ; B+ to Yellow ; B- to Blue; Motor Size: 57x57x76 mm - Specifications of MT2 Tailstock: Morse Taper 2 Live Center Movable MT2 Tailstock; Center Height: 65 mm/2.56 inch; Expansion stroke: 45 mm1.77 inch; Stretch distance: 50 mm/1.97 inch; Top tip: Activity type; With Axial locking wrench for tailstock; Exquisite workmanship,Durable,Stable performance,Sturdy and Wear-resistant; Weight: 2.5 KG/5.5 LB - Chuck Type: K12-100 4-Jaw self-centering chuck; Diameter:100mm; Max input torque: 60 N.m; Max Speed: 3500 R/min; External jaw clamping range: 30-80 mm/1.18-3.15 inches.; Internal jaw clamping range: 2-30 mm/0.08-1.18 inches; Internal jaw jamming range: 30-90 mm/1.18-3.54 inches; With four Anti-claw and Wrench - Advantages: Rust proof coating process,stable 4 jaw chuck structure,fine workmanship,solid and practical jaw, excellent process to maximize service life;Application: The fourth axis can be used for three-dimensional processing of cylinders, bends and circles. The fourth axis engraving machine can be used for engraving spirals, scars etc ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07B2RX1BK | | ASIN | B07B2RX1BK | | Brand Name | CNCTOPBAOS | | Capacity | 100 Millimeters | | Compatible Devices | Milling Machine | | Customer Reviews | 4.2 4.2 out of 5 stars (42) | | Customer reviews | 4.2 4.2 out of 5 stars (42) | | Date First Available | 12 February 2019 | | Handle Type | hand-tightened | | Included Components | 4th axis K12 100mm, stepper motor, 4 jaw chuck, 65mm Tailstock | | Is Discontinued By Manufacturer | No | | Item Diameter | 100 Millimeters | | Item Weight | 10.23 Kilograms | | Item model number | S23 | | Lock Type | Self Centering | | Manufacturer | CNCTOPBAOS | | Manufacturer | CNCTOPBAOS | | Manufacturer Part Number | S23 | | Material Type | Aluminum | | Model Number | S23 | | Package Dimensions | 43.18 x 30.48 x 22.86 cm; 10.23 kg | | UPC | 785004502711 | ## Product Details - **Brand:** CNCTOPBAOS - **Compatible devices:** Milling Machine - **Item diameter:** 100 Millimeters - **Item weight:** 10.23 Kilograms - **Material:** Aluminum ## Images ![K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine - Image 1](https://m.media-amazon.com/images/I/61BG6gz7htL.jpg) ![K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine - Image 2](https://m.media-amazon.com/images/I/717T8f-Q3zL.jpg) ![K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine - Image 3](https://m.media-amazon.com/images/I/71N91XyKWeL.jpg) ![K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine - Image 4](https://m.media-amazon.com/images/I/61IWj4SluaL.jpg) ![K12-100mm CNC Router Milling Machine Rotational Axis 4th Axis A axis Rotary Table A axis 100mm 4 jaw chuck dividing head,MT2 65mm Tailstock Reducing ratio 6:1 for CNC Engraving Machine - Image 5](https://m.media-amazon.com/images/I/71x3NjwWfQL.jpg) ## Available Options This product comes in different **Style** options. ## Frequently Bought Together - CNCTOPBAOS Rotation 5th Axis Rotary Table,CNC 4th Axis A Axis B C Axis Dividing Head,Waterproof Nema23 Stepper Motor,No Backlash Harmonic Reducer Gearbox 50:1 for CNC Router Engraving Milling Machine - BIGTREETECH SKR V1.4 Turbo 32bit Control Board DIY for Most FDM 3D Priners Mainbaord Compatible TFT Series Touch Screen/ 12864LCD Support TMC2209/TMC2208/TMC2130 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.br/products/430293229-k12-100mm-cnc-router-milling-machine-rotational-axis-4th-axis](https://www.desertcart.com.br/products/430293229-k12-100mm-cnc-router-milling-machine-rotational-axis-4th-axis) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-06-17*